import { app, shell, BrowserWindow, ipcMain } from 'electron'
import { join } from 'path'
import { electronApp, optimizer, is } from '@electron-toolkit/utils'
import icon from '../../resources/icon.png?asset'
import {SerialPort} from 'serialport'

let portObj = {}

function configPortIPC(mainWindow) {
  // 列举串口
  ipcMain.handle('serial-list', async (_) => {
    const list = await SerialPort.list()
    if (mainWindow) {
      mainWindow.webContents.send('serial-list', list)
    }
  })
  // 串口配置
  ipcMain.handle('serial-open', async (_, options) => {
    if (!options.path)
      return
    if (portObj.hasOwnProperty(options.path)) {
      let p = portObj[options.path]
      p.close((err) => {
        if (err)
          console.log(err)
      })
      delete portObj[options.path]
      console.log(`close port: ${options.path}`)
    }
    setTimeout(() => {
      const port = new SerialPort(options)
      portObj[options.path] = port
      // 串口数据接收
      port.on('data', (data) => {
        if (mainWindow) {
          mainWindow.webContents.send('serial-data', {
            path: options.path,
            data,
          })
        }
      })
      // 串口错误
      port.on('error', (error) => {
        if (mainWindow) {
          mainWindow.webContents.send('serial-error', {
            path: options.path,
            error,
          })
        }
      })
      console.log(`open port: ${options.path}`)
    }, 100)// 100ms延时开启，防止串口关闭资源未释放
  })
  // 关闭串口
  ipcMain.handle('serial-close', (_, path) => {
    if (portObj.hasOwnProperty(path)) {
      let p = portObj[path]
      p.close()
      delete portObj[path]
    }
  })
  // 串口发送数据
  ipcMain.handle('serial-write', async (_, {path, data}) => {
    if (portObj.hasOwnProperty(path)) {
      let p = portObj[path]
      await p.write(data)
    }
  })
}

function createWindow() {
  // Create the browser window.
  const mainWindow = new BrowserWindow({
    width: 900,
    height: 670,
    show: false,
    autoHideMenuBar: true,
    ...(process.platform === 'linux' ? { icon } : {}),
    webPreferences: {
      preload: join(__dirname, '../preload/index.js'),
      sandbox: false,
    }
  })

  mainWindow.on('ready-to-show', () => {
      mainWindow.show()
  })

  mainWindow.webContents.setWindowOpenHandler((details) => {
    shell.openExternal(details.url)
    return { action: 'deny' }
  })

  // HMR for renderer base on electron-vite cli.
  // Load the remote URL for development or the local html file for production.
  if (is.dev && process.env['ELECTRON_RENDERER_URL']) {
      mainWindow.loadURL(process.env['ELECTRON_RENDERER_URL'])
  } else {
      mainWindow.loadFile(join(__dirname, '../renderer/index.html'))
  }
  return mainWindow
}

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.whenReady().then(() => {
  // Set app user model id for windows
  electronApp.setAppUserModelId('com.electron')

  // Default open or close DevTools by F12 in development
  // and ignore CommandOrControl + R in production.
  // see https://github.com/alex8088/electron-toolkit/tree/master/packages/utils
  app.on('browser-window-created', (_, window) => {
    optimizer.watchWindowShortcuts(window)
  })

  // IPC test
  ipcMain.on('ping', () => console.log('pong'))

  const mainWindow = createWindow()
  
  configPortIPC(mainWindow)

  app.on('activate', function () {
    // On macOS it's common to re-create a window in the app when the
    // dock icon is clicked and there are no other windows open.
    if (BrowserWindow.getAllWindows().length === 0) createWindow()
  })
})

// Quit when all windows are closed, except on macOS. There, it's common
// for applications and their menu bar to stay active until the user quits
// explicitly with Cmd + Q.
app.on('window-all-closed', () => {
  if (process.platform !== 'darwin') {
    app.quit()
  }
})

// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.
